Interface Region Imaging Spectrograph
Spacecraft
Interface Region Imaging Spectrograph, also called Explorer 94 and SMEX-12, is a NASA solar observation satellite. The mission was funded through the Small Explorer program to investigate the physical conditions of the solar limb, particularly the... Wikipedia
Launch date: June 28, 2013
Bus: IRIS
Launch mass: 200 kg (440 lb)
Mission duration: 2 years (planned); 10 years, 9 months, 16 days (in progress)
Operator: NASA / Lockheed Martin
Reference system: Geocentric orbit
Spacecraft: Explorer XCIV